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1. 发明授权

US08542101B2 Data recovery method and apparatus for radio frequency identification 失效
标题翻译：数据恢复方法及射频识别装置
公开(公告)号：US08542101B2
公开(公告)日：2013-09-24
申请号：US11585982
申请日：2006-10-25
申请人： Ji-hun Koo , Woo-shik Kang , Kyung-ho Park
发明人： Ji-hun Koo , Woo-shik Kang , Kyung-ho Park
IPC分类号： G06K7/08
CPC分类号： G06K7/0008
摘要： Provided are an RFID reader and a data recovery method which selectively selects only an integrity-checked phase signal, when receiving a backscattered signal of an RFID tag through an I signal path or a Q signal path, and may reduce a shadow area of a read range. The RFID reader includes a signal receiver which receives a plurality of phase signals; a symbol detector which recovers data with respect to each of the received phase signals; and a signal selector which selects a signal that satisfies a predetermined standard, from the data-recovered phase signals.
摘要翻译：提供了一种RFID读取器和数据恢复方法，其通过I信号路径或Q信号路径接收RFID标签的反向散射信号时，仅选择完整性检查的相位信号，并且可以减少读取的阴影区域范围。 RFID读取器包括接收多个相位信号的信号接收器; 符号检测器，其针对每个所接收的相位信号恢复数据; 以及从数据恢复的相位信号中选择满足预定标准的信号的信号选择器。

2. 发明授权

US08125317B2 Portable device for caching RFID tag and method thereof 有权
标题翻译：用于缓存RFID标签的便携式设备及其方法
公开(公告)号：US08125317B2
公开(公告)日：2012-02-28
申请号：US11374186
申请日：2006-03-14
申请人： Hyung-min Yoon , Kyung-ho Park , Woo-shik Kang
发明人： Hyung-min Yoon , Kyung-ho Park , Woo-shik Kang
IPC分类号： H04Q5/22
CPC分类号： G06K7/0008
摘要： A portable device includes an RFID reader for detecting a tag information of an RFID tag, a memory for storing the tag information detected by the RFID reader, and a controller. When a read command for the RFID tag is input and the tag information is valid, the controller controls the RFID reader to retrieve the tag information of the memory. If the tag information is invalid, the controller controls the RFID reader to re-read the RFID tag. The controller can determine whether the tag information is valid using the time and location. Because unnecessary operation can be omitted to read tags, power consumption is reduced and tag information check time is shortened.
摘要翻译：便携式设备包括用于检测RFID标签的标签信息的RFID读取器，用于存储由RFID读取器检测到的标签信息的存储器和控制器。当输入RFID标签的读取命令并且标签信息有效时，控制器控制RFID读取器来检索存储器的标签信息。如果标签信息无效，则控制器控制RFID读取器重新读取RFID标签。控制器可以使用时间和位置确定标签信息是否有效。由于读取标签可以省略不必要的操作，因此功耗降低，标签信息检查时间缩短。

3. 发明授权

US07796015B2 Wireless terminal and RFID system for providing additional information and a method for providing additional information using wireless terminal and RFID system 有权
标题翻译：用于提供附加信息的无线终端和RFID系统以及使用无线终端和RFID系统提供附加信息的方法
公开(公告)号：US07796015B2
公开(公告)日：2010-09-14
申请号：US11376332
申请日：2006-03-16
申请人： Kyung-ho Park , Woo-shik Kang , Jin-young Yang , Si-gyoung Koo , Hyung-min Yoon , Ji-hun Koo
发明人： Kyung-ho Park , Woo-shik Kang , Jin-young Yang , Si-gyoung Koo , Hyung-min Yoon , Ji-hun Koo
IPC分类号： H04Q5/22
CPC分类号： G06K7/0008 , G06K7/10039
摘要： A wireless terminal and a radio frequency identification system for providing additional information and a method of providing additional information using the wireless terminal and the radio frequency identification system. The wireless terminal includes: a tag reader reading tag data from a radio frequency identification tag; a controller generating an additional information request signal with respect to the read tag data; and a communication network interface transmitting the additional information request signal through a communication network and receiving additional information with respect to the additional information request signal. Since the controller of the wireless terminal controls the radio frequency identification reader by optimally setting the information required for determining the time point for the radio frequency identification reader tag to respond, and utilizing the stored address of the additional information providing server, the additional information can be efficiently provided.
摘要翻译：一种用于提供附加信息的无线终端和射频识别系统以及使用无线终端和射频识别系统提供附加信息的方法。无线终端包括：标签读取器，从射频识别标签读取标签数据; 控制器，生成关于所读取的标签数据的附加信息请求信号; 以及通信网络接口，通过通信网络发送附加信息请求信号，并接收关于附加信息请求信号的附加信息。由于无线终端的控制器通过最佳地设置确定射频识别读取器标签的时间点所需的信息来响应，并利用附加信息提供服务器的存储的地址来控制射频识别读取器，附加信息可以有效地提供。

4. 发明授权

US07715465B2 Correlation method to adaptively operate in time varying phase and correlator thereof 有权
标题翻译：相关方法适应于时变相位及相关
公开(公告)号：US07715465B2
公开(公告)日：2010-05-11
申请号：US11505409
申请日：2006-08-17
申请人： Artem Moutchkaev , Woo-Shik Kang , Si-gyoung Koo , Ji-hun Koo
发明人： Artem Moutchkaev , Woo-Shik Kang , Si-gyoung Koo , Ji-hun Koo
IPC分类号： H04B1/00
CPC分类号： H04B1/7095 , H04B1/707 , H04B1/7093
摘要： Disclosed is a correlation method to adaptively operate in a time varying phase and a correlator thereof. A correlation method according to the present invention includes performing the first correlation according to a certain reference value and a certain reference interval for correlation of a received signal; calculating an average variation of the received signal through the result of performing the first correlation; deciding a new reference value for the second correlation through the average variation; performing the second correlation according to the new reference value and the reference interval; and selecting the maximum value among the result of performing the second correlation. Accordingly, plural references are decided considering variation of a response signal between tags and also separate plural references are decided considering bit variation of a response signal in the same tag, so that a digital signal can be ideally demodulated in the environment where signal phase variation occurs.
摘要翻译：公开了一种在时变相位中自适应地操作的相关方法及其相关器。根据本发明的相关方法包括根据特定的参考值和一定的参考间隔对接收的信号进行相关性执行第一相关; 通过执行所述第一相关的结果计算所述接收信号的平均变化; 通过平均变化确定第二相关的新参考值; 根据新的参考值和参考间隔执行第二相关; 以及选择执行第二相关的结果中的最大值。因此，考虑到标签之间的响应信号的变化来决定多个参考，并且考虑在相同标签中的响应信号的位变化来决定分离的多个参考，使得数字信号可以在信号相位变化的环境中理想地被解调。

5. 发明授权

US07706439B2 Signal transmitting and receiving method over wireless network and a reader 失效
标题翻译：无线网络和读卡器的信号发射和接收方法
公开(公告)号：US07706439B2
公开(公告)日：2010-04-27
申请号：US11386759
申请日：2006-03-23
申请人： Ji-hun Koo , Woo-shik Kang
发明人： Ji-hun Koo , Woo-shik Kang
IPC分类号： H03K7/08
CPC分类号： H04L25/4902
摘要： A signal transmitting and receiving method in a wireless network use a reader creates a pulse width list relating to pulse widths of transmission signals; transmits signals in sequence according to the created pulse width list; and receives a reply signal with respect to the transmitted signals. The method includes creating a pulse width list relating to pulse widths of the transmitted signals; transmitting signals in sequence according to the created pulse width list; and creating an available pulse width list including a corresponding pulse width in response to receiving a reply signal from the transmitted signals; and transmitting signals in sequence according to the created available pulse width list.
摘要翻译：无线网络中的信号发送和接收方法使用读取器创建与传输信号的脉冲宽度相关的脉冲宽度列表; 根据创建的脉冲宽度列表顺序发送信号; 并且接收关于所发送的信号的应答信号。该方法包括创建与发射信号的脉冲宽度相关的脉冲宽度列表; 根据创建的脉冲宽度列表顺序传输信号; 以及响应于从所发送的信号接收到应答信号，创建包括对应的脉冲宽度的可用脉冲宽度列表; 并根据创建的可用脉冲宽度列表顺序发送信号。

6. 发明授权

US07428240B2 Data communications method using backoff number control 有权
标题翻译：数据通信方式采用退避数控制
公开(公告)号：US07428240B2
公开(公告)日：2008-09-23
申请号：US10247482
申请日：2002-09-20
申请人： Kyung-hun Jang , Woo-shik Kang
发明人： Kyung-hun Jang , Woo-shik Kang
IPC分类号： H04L12/413
CPC分类号： H04W74/085 , H04L12/413 , H04W74/06
摘要： A method for transmitting data in a centralized data communications system having an access point and a plurality of stations using a carrier sense multiplexing access (CSMA) method using a backoff number control preferably includes (a) receiving a multi-poll message containing backoff numbers to be assigned to each station by the access point; (b) setting the backoff numbers of the multi-poll message to the backoff numbers of the stations; and (c) counting down the set backoff numbers and transmitting data. Each station that desires polling registers a station ID and a polling cycle, sets a backoff number contained in a multi-poll message, counts the backoff number, and if the backoff number becomes zero, transmits data such that contention between stations is prevented.
摘要翻译：在使用倒退号码控制的载波侦听复用接入（CSMA）方法的具有接入点和多个站的集中式数据通信系统中发送数据的方法优选地包括：（a）接收包含退避号码的多轮询消息，由接入点分配给每个电台; （b）将多轮询消息的退避次数设置为站的退避次数; （c）对设定的退货号码进行倒计时并发送数据。每个需要轮询的站登记站号和轮询周期，设置包含在多轮询消息中的退避号码，对退避次数进行计数，并且如果退避次数为零，则发送数据，以防止站间的争用。

7. 发明申请

US20070124356A1 Correlation method to adaptively operate in time varying phase and correlator thereof 有权
标题翻译：相关方法适应于时变相位及相关
公开(公告)号：US20070124356A1
公开(公告)日：2007-05-31
申请号：US11505409
申请日：2006-08-17
申请人： Artem Moutchkaev , Woo-shik Kang , Si-gyoung Koo , Ji-hun Koo
发明人： Artem Moutchkaev , Woo-shik Kang , Si-gyoung Koo , Ji-hun Koo
IPC分类号： G06F17/15
CPC分类号： H04B1/7095 , H04B1/707 , H04B1/7093
摘要： Disclosed is a correlation method to adaptively operate in a time varying phase and a correlator thereof. A correlation method according to the present invention includes performing the first correlation according to a certain reference value and a certain reference interval for correlation of a received signal; calculating an average variation of the received signal through the result of performing the first correlation; deciding a new reference value for the second correlation through the average variation; performing the second correlation according to the new reference value and the reference interval; and selecting the maximum value among the result of performing the second correlation. Accordingly, plural references are decided considering variation of a response signal between tags and also separate plural references are decided considering bit variation of a response signal in the same tag, so that a digital signal can be ideally demodulated in the environment where signal phase variation occurs.
摘要翻译：公开了一种在时变相位中自适应地操作的相关方法及其相关器。根据本发明的相关方法包括根据特定的参考值和一定的参考间隔对接收的信号进行相关性执行第一相关; 通过执行所述第一相关的结果计算所述接收信号的平均变化; 通过平均变化确定第二相关的新参考值; 根据新的参考值和参考间隔执行第二相关; 以及选择执行第二相关的结果中的最大值。因此，考虑到标签之间的响应信号的变化来决定多个参考，并且考虑在相同标签中的响应信号的位变化来决定分离的多个参考，使得数字信号可以在信号相位变化的环境中理想地被解调。

8. 发明申请

US20070120675A1 SSB response method of RFID tag 审中-公开
标题翻译： RFID标签的SSB响应方法
公开(公告)号：US20070120675A1
公开(公告)日：2007-05-31
申请号：US11515724
申请日：2006-09-06
申请人： Ji-hun Koo , Woo-shik Kang
发明人： Ji-hun Koo , Woo-shik Kang
IPC分类号： G08B13/14
CPC分类号： G06K7/0008 , G06K7/10069
摘要： A single side band (SSB) response method of a radio frequency identification (RFID) tag receives a double side band (DSB) response signal whose frequency band is shifted from the RFID tag by shifting an SSB frequency band after transmitting an SSB command signal to an RFID tag. Even though the reader uses the SSB frequency band, the reader can receive a stable DSB response signal from the RFID tag.
摘要翻译：射频识别（RFID）标签的单边带（SSB）响应方法通过在发送SSB命令信号之后通过移位SSB频带来接收频带从RFID标签偏移的双边带（DSB）响应信号 RFID标签。即使读取器使用SSB频带，读取器也可以从RFID标签接收稳定的DSB响应信号。

9. 发明申请

US20070098062A1 Signal transmitting and receiving method over wireless network and a reader 失效
标题翻译：无线网络和读卡器的信号发射和接收方法
公开(公告)号：US20070098062A1
公开(公告)日：2007-05-03
申请号：US11386759
申请日：2006-03-23
申请人： Ji-hun Koo , Woo-shik Kang
发明人： Ji-hun Koo , Woo-shik Kang
IPC分类号： H03K7/08 , H04L27/00
CPC分类号： H04L25/4902
摘要： A signal transmitting and receiving method in a wireless network use a reader creates a pulse width list relating to pulse widths of transmission signals; transmits signals in sequence according to the created pulse width list; and receives a reply signal with respect to the transmitted signals. The method includes creating a pulse width list relating to pulse widths of the transmitted signals; transmitting signals in sequence according to the created pulse width list; and creating an available pulse width list including a corresponding pulse width in response to receiving a reply signal from the transmitted signals; and transmitting signals in sequence according to the created available pulse width list.
摘要翻译：无线网络中的信号发送和接收方法使用读取器创建与传输信号的脉冲宽度相关的脉冲宽度列表; 根据创建的脉冲宽度列表顺序发送信号; 并且接收关于所发送的信号的应答信号。该方法包括创建与发射信号的脉冲宽度相关的脉冲宽度列表; 根据创建的脉冲宽度列表顺序传输信号; 以及响应于从所发送的信号接收到应答信号，创建包括对应的脉冲宽度的可用脉冲宽度列表; 并根据创建的可用脉冲宽度列表顺序发送信号。

10. 发明申请

US20060279409A1 Channel selection method for reading tag information, tag selection apparatus of radio frequency identification (RFID) reader, and RFID reader 有权
标题翻译：用于读取标签信息的通道选择方法，射频识别（RFID）读取器的标签选择装置和RFID读取器
公开(公告)号：US20060279409A1
公开(公告)日：2006-12-14
申请号：US11443157
申请日：2006-05-31
申请人： Jin-young Yang , Woo-shik Kang
发明人： Jin-young Yang , Woo-shik Kang
IPC分类号： H04Q5/22
CPC分类号： G06K7/0008 , G06K7/10019
摘要： A channel selection method for reading tag information, a channel selection apparatus of an RFID reader applying the same, and an RFID reader. A channel selection apparatus of a radio frequency identification (RFID) reader equipped within a wireless communication portable terminal, includes a channel selection unit which selects a channel to read tag information stored in an RFID tag, and a channel determination unit which, when determining that the selected channel is not used by another RFID reader, determines the selected channel to be a channel to read the tag information. Accordingly, when a plurality of RFID readers reads out the tag information from the RFID tag almost at the same time, the interference among them can be avoided.
摘要翻译：用于读取标签信息的频道选择方法，应用它的RFID读取器的频道选择装置和RFID读取器。一种配备在无线通信便携终端内的射频识别（RFID）读取器的频道选择装置，包括选择频道以读取存储在RFID标签中的标签信息的频道选择单元，以及信道确定单元，当确定所选择的信道不被另一个RFID读取器使用，将所选择的信道确定为用于读取标签信息的信道。因此，当多个RFID读取器几乎同时从RFID标签读出标签信息时，可以避免它们之间的干扰。

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